Title:
METHOD FOR COLLECTING TUNGSTEN COMPOUNDS
Document Type and Number:
WIPO Patent Application WO/2013/151190
Kind Code:
A1
Abstract:
[Problem] To collect tungsten from a tungsten-containing material to be treated by means of simple processing steps using microorganisms, and with a reduced environmental load and excellent efficiency. [Solution] A method for collecting tungsten compounds, the method comprising: a step in which the metal components of a tungsten-containing material to be treated are eluted in an alkali solution, and a tungsten compound solution in which tungsten compound ions are dissolved is obtained; an adsorption step in which microorganisms are introduced into the tungsten compound solution, the tungsten compound solution is adjusted so as to be acidic, and tungsten compound ions are adhered to the microorganisms; and a collecting and cleaning step in which the microorganisms having tungsten compound ions adsorbed thereto are collected and cleaned.
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Inventors:
TERASHI YOSHITAKE (JP)
AKIYAMA MASAHIDE (JP)
MAKINO TAKAHIKO (JP)
AKIYAMA MASAHIDE (JP)
MAKINO TAKAHIKO (JP)
Application Number:
PCT/JP2013/062409
Publication Date:
October 10, 2013
Filing Date:
April 26, 2013
Export Citation:
Assignee:
KYOCERA CORP (JP)
International Classes:
C22B34/36; B01J20/24; B09B3/00; C02F1/28; C22B3/18; C22B3/44; C22B7/00
Foreign References:
| JP2011179038A | 2011-09-15 | |||
| JP2005152756A | 2005-06-16 | |||
| JP2007228960A | 2007-09-13 | |||
| JP2011047013A | 2011-03-10 | |||
| JPH0320445B2 | 1991-03-19 | |||
| JP2004002927A | 2004-01-08 |
Other References:
YUMA SAKAMOTO ET AL.: "BISEIBUTSU O MOCHIITA KINZOKU ION GAN'YUEKI NO EKITAI SEIJO - MICROBIAL DEANING OF METAL ION CONTAINING SOLUTION", KUKI SEIJO TO CONTAMINATION CONTROL KENKYU TAIKAI YOKOSHU, June 2012 (2012-06-01), pages 191 - 192, XP008174989
Attorney, Agent or Firm:
TADA, Kazuhiko et al. (JP)
Kazuhiko Tada (JP)
Kazuhiko Tada (JP)
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